Coaticook, Canada offers 1 beach perfect for sunbathing, surfing, swimming, and more. Coaticook is known for the Coaticook Gorge, Foresta Lumina, and the Coaticook Dairy. The best time to travel to Coaticook, Canada, is during the summer months of June to August, when the average air temperature is around 68°F (20°C) and water temperature is approximately 64°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!